Universally united scoop for separable fasteners



Feb. 1, 1949. MQRIN 2,460,525

I UNIVERSALLY UNITED SCOOP FOR SEPARABLE FASTENERS 2 Sheets-Sheet 1Filed Nov. 21, 1944 RNVENTOR Lou/s H Mom/v uncouple the same.

vention deals with what I term coreless double Patented Feb. 1 1949UNIVERSALIQY UNITED scoor FOR SEPARABLE FASTENERS Louis H. Morin, Bronx,N. Y.

Application November 21, 1944, Serial No. 564,487

This invention relates to separable fasteners employing stringers havingscoops to couple and More particularly, the inacting scoops soconstructed as to provide universal coupling of the stringers; Stillmore particularly, the invention deals. with scoops wherein pairs ofmale and female couplings are arranged on each surface of the scoop, andthe coupling portions of one surface being opposed to the couplingportions'of the other surface. The novel features of the invention willbe best understood from the following descriptions when taken togetherwith the accompanying drawing in which certain embodiments of theinvention are disclosed, and in. which the separate parts are designatedby suitable reference characters in each of the views, and in which:

Fig. 1 is a perspective view showing one scoop on the beaded edge of afastener stringer.

Fig. 2 is a reduced side view of the scoop as seen in Fig. 1.

Fig. 3 is a section substantially on the line 33 of Fig. 2.

Fig. 4 is a section substantially on the line 4-4 of Fig. 2.

Fig. 5 is a view similar to Fig. 1, showing another form of scoop.

Fig. 6 is a reduced side view of the scoop shown in Fig. 5.

Figs. 7 and 8 are sections substantially on the lines 'I'| and 88 ofFig. 6.

Fig. 9 is a view similar to Figs. 1 and 5, ing another form of scoop.

Fig. 10 is a reduced side view of the scoo shown in Fig. 9; and

Figs. 11 and 12 are sections substantially on the lines li-ll and 12-12of Fig. 10.

My present invention deals with scoops of separable fastener stringersof what I term the coreless type. By this is meant, the scoops areformed from die castings without the use of core pins or the like on theparting line of the dies, thus adapting scoops of this type and kind forcasting in multiple directly upon the stringer tape. In other words, thescoops are of such form as to readily free themselves from the diecavities in the separation of the dies, and at the same time, the scoopsare so formed as to provide male and female couplings retaining thescoops of coupled stringers against transverse and lateral separation.

on the other hand, the scoops are also of what I term the double actiontype. That is to say, both side portions of the scoops are substantiallysnow- 12 Claims. (Cl. 24-20513) the same, thus sliders are adaptable formovement along the stringers with the narrow end of the sliders arrangedin either of two directions on the stringers in coupling and uncouplingthe scoops.

Notwithstanding the fact thatthe male and female couplings have astaggered arrangement on' each surface of the scoop, the arrangement onopposed surfaces is such that stringers may be united in a universalmanner, that is to say, with the ends of the stringers arranged in anyposition one with respect to the other. This latter constructionmaterially simplifies installation of the stringers in the supportstherefor by manufacturers, and avoids any possibility of improper matingarrangement of stringers in the supports. At the same time,'productionof the stringers is simplified in that a single stringer is produced. Inother words, no lefts and rights are required.

In Figs. 1 to 4 inclusive'is shown one form of scoop construction, thescoop being generally identified by the reference character l5. In Figs.1 and 2, l6 represents part of a stringer tape, and I! the beaded edgethereof. The scoop l5 comprises a mounting end portion l8 arranged uponthe beaded edge l1 and a coupling end portion is which projectsoutwardly from said beaded edge.

The coupling end portion of the scoop l5 has an outer coupling end orhead 20 which is substantially of diamond shape cross sectional form.The head 20 forms the male coupling of the scoop which is adapted toenter the channeled or recessed portion of adjacent scoops in couplingstringers together, the channel or recess being indicated by thereference character 2! in Figs. 1 and 2 of the drawing, and this recessis arranged on both surfaces of the scoop, and each recess issubstantially V-shaped in cross sectional form, as will clearly appearfrom a consideration of Fig. 1.

The walls of the head 20 and recesses 2l taper in the direction of theside surfaces of the scoop in order to provide clearances betweenadjacent coupled scoops for bending and flexure of the stringers. Thesetapers are indicated in Fig. 1 of the drawing and are more clearlyillustrated by the reduced lines of the head 20, as seen at 22 in Fig. 2and the reduced lines 23 at the inner portions of the recesses 2|. Inother words, the scoops are of greatest thickness along the longitudinalcenter lines represented at 24 in Fig'. 1 of the drawing, and this alsoappears from the cross sections through the scoop shown in Figs. 3 and4.

The center line 24 divides the scoop into coupling side portions 25 and26, note Figs. 1 and 3.

shown in Fig. 3 of the drawing.

In Fig. 4 of the drawing is shown a section through the recessedportion. of the scoop. At this portion, the coupling side 26 is :ofgreater height than the coupling side to form a coupling shoulder 29 onthe upper surface of the scoop, whereas the coupling side 25 extendsdownwardly a greater distance than the coupling side 26 to form acoupling shoulder with the lower surface of the scoop.

As will clearly appear'in Fig. 2 of the drawing, H

the bevelled surfaces forming one side of the head 20 and one side ofthe recesses 2| register in a single ridge 3| at upper and lowersurfaces of the scoop and extending substantially from the peaks of thehead to the base of the recesses. In other words, the shoulders 21 and28 terminate substantially at the high-points of the diamond head 20,whereas the shoulders 29 and 39 terminate at the base of the recesses orchannels 2|.

When scoops of opposed stringers are coupled together, it will beapparent that the shoulder 21 of one scoop will engage the shoulder 30of an adjacent scoop, and the shoulder 28 of said scoop will engage theshoulder 29 of still another scoop in coupling the scoops againsttransverse separation. From this standpoint, it may be said that theouter end portions of the heads 20 have interengaging male couplingshoulders 21 and 28, whereas the inner end portion of the recesses orchannels 2| have male coupling shoulders 29 and 30, and that theintervening portion of the scoops, in other words, the outer ends of therecesses or channels and the inner ends of the head have flat abuttingand uncoupled surfaces, except to the extent that the shoulders extendonto said surfaces.

It will also appear that opposite side surfaces of the scoop body |5have recesses 32 in alinement with the base of the recesses or channels2|, and these are provided to facilitate greater tilting or swingingmovement of the scoops one upon the other in the flexure or bendingthereof.

In Figs. 5 to 8 inclusive is shown a modified form of scoop 33, and asthis scoop is generally of the same contour as the one already described(the head 34 corresponding to the head 29and the channels or recesses 35corresponding to the channels or recesses 2|) no further specificdescription with regard to this structure of the scoop will be given, asit simply would be a repetition.

The structure of Figs. 5 to 8 inclusive differs from the structure inFigs. 1 to 4 inclusive, in providing on the center high-point line 36 ofthe scoops limited coupling shoulders 31 and 38 at the upper and lowerpeaks of the head 34 and other limited coupling shoulders 39 and 4|] atthe base of the channels'or recesses 35. In other words, the shoulders31 and 38 are similar to the shoulders 21 and 28, and the shoulders 39and 40 are similar to the shoulders 29 and 30, except that they arelocated centrally of the heads and recesses rather than being disposedon one wall only of the heads and recesses.

Omitting for the sake of consideration the part of the shoulders 39 and49, which extend onto the walls of the head 34 and recesses 35, it maybe said that the shoulders occupy only part of the outer portions of thehead and only partof the inner portions of the recesses, and these partswould form a limited coupling engagement between adjacent scoops.However, as shown in the accompanying drawings, the shoulders extendonto the head and from this standpoint would constitute a furthermodification in adding the interengaging couplings on the head wherethey are substantially entirely lacking on the ridges 3|.

Considering the cross sectional view in Fig. 7

of the drawing, it will appear that the shoulders 31 and 38 are formedby what may be termed notches or recesses 42 and 43 in the head 34. Inconsidering Fig. 8 of the drawing, it will appear that the shoulders 39and 40 are formed by what may be termed enlargements or projections 44and 45 in the recesses 35. Inconnection with the cross sectional viewsshown in Figs. 3, 4, 7, 8, as well as 11 and 12, it will be apparentthat for the purpose of simplifying the illustrations these views simplyshow the part of the scoop where the section'line is indicated in theassociated figures, omitting the background.

In Figs. 9 to 12 inclusive is shown another modified form of scoop 46.Here again the general scoop structure is much the same as 'that shownin Figs. 1 to 4 inclusive as well as in Figs. 5 to 8 inclusive, andagain no further detailed description with regard to the scoop structurewill be given. The scoop 46 has shouldered couplings 41-48 and 49-50,quite similar to the shoulders 31 and 38, formed in the head 5| of thescoop, whereas the shoulders 49 and-50 are formed in the channel orrecesses 52. primary difference between the two structures shown inFigs. 5 to 8 and 9 to 12 is in the fact that the shoulders 41 and 48 areformed by channels 53 and 54, which are more or less conical in form orU-shaped in cross sectional form adapted to receive core likeprojections 55 and 56. So formed, these channels and projections in andof themselves provide for interlocking the scoops against lateral orpull-apart separation, in addition to the interlocking againsttransverse separation afiorded by the shoulders or faces 41-50.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A scoop for separable fastener stringers comprising a coupling headat one end of the-scoop of substantial diamond cross sectional formproducing on upper and lower surfaces of the scoop transversely arrangedprojections, the scoop inwardly of said projections having transverserecesses of V-shaped cross sectional form adapted to receive theprojections of scoops of a companion stringer in retaining coupledstringers against lateral separation, the projecting portions of saidhead having centrally thereof oppositely faced coupling shoulders onupper and lower surfaces thereof, the recessed portions of the scoophaving centrally thereof oppositely exposed coupling shoulders onopposed surfaces of the scoop, the last named shoulders being facedoppositely to said first named shoulders on each surface of the scoop,and said shoulders providing interengagement between coupled scoops ofopposed stringers in retaining the scoops against transverse separation.

The

2. A scoop for separable fastener stringers comprising a coupling headat one end of the scoop of substantial diamond cross sectional formproducing on upper and lower surfaces of the scoop transversely arrangedprojections, the scoop inwardly of said projections having transverserecesses of V-shaped cross sectional form adapted to receive theprojections of scoops of a companion stringer in retaining coupledstringers against lateral separation, the projecting portions of saidhead having centrally thereof oppositely faced coupling shoulders onupper and lower surfaces thereof, the recessed portions of the scoophaving centrally thereof oppositely exposed coupling shoulders onopposed surfaces of the scoop, the last named shoulders being facedoppositely to said first named shoulders on each surface of the scoop,said shoulders providing interengagement between coupled scoops ofopposed stringers in retaining the scoops against transverse separation,and the coupling shoulders on said head being arranged from thelongitudinal central portion of the head to the outer surface of thehead.

3. A scoop for separable fastener stringers comprising a coupling headat one end of the scoop of substantial diamond cross sectional formproducing on upper and lower surfaces of the scoop transversely arrangedprojections, the scoop inwardly of said projections having transverserecesses of V-shaped cross sectional form adapted to receive theprojections of scoops of a companion stringer in retaining coupledstringers against lateral separation, the projecting portions of saidhead having centrally thereof oppositely faced coupling shoulders onupper and lower surfaces thereof, the recessed portions of the scoophaving centrally thereof oppositely exposed coupling shoulders onopposed surfaces of the scoop, the last named shoulders being facedoppositely to said first named shoulders on each surface of the scoop,said shoulders providing interengagement between coupled scoops ofopposed stringers in retaining the scoops against transverse separation,the coupling shoulders on said head being arranged from the longitudinalcentral portionof the head to the outer surface of the head, and thecoupling shoulders of the recessed portion of the scoop being arrangedalong the inner wall of said recesses. K

4. A scoop for separable fastener stringers comprising a coupling headat one end of the scoop of substantial diamond cross sectional formproducing on upper and lower surfaces of the scoop transversely arrangedprojections, the scoop inwardly of said projections having transverserecesses of V-shaped cross sectional form adapted to receive theprojections of'scoops of a companion stringer in retaining coupledstringers against lateral separation, the projecting portions of saidhead having centrally thereof oppositely faced coupling shoulders onupper and lower surfaces thereof, the recessed portions of the scoophaving centrally thereof oppositely exposed coupling shoulders onopposed surfaces of the scoop, the last named shoulders being facedoppositely to said first named shoulders on each surface of the scoop,said shoulders providing interengagement between coupled scoops ofopposed stringers in retaining the scoops against transverse separation,and said shoulders being arranged centrally of the high-point of theprojections of said head and centrally of the low-point of saidrecesses.

5. A scoop for separable fastener stringers comprising a coupling headat one end of the scoop of substantial diamond cross sectional formproducing on upper and lower surfaces 01 the scoop transversely arrangedprojections, the scoop inwardly of said projections having transverserecesses of V-shaped cross sectional form adapted to receive theprojections of scoops of a companion stringer in retaining coupledstringersagainst lateral separation, the projecing portions of said headhaving centrally thereof oppositely faced coupling shoulders on upperand lower surfaces thereof, the recessed portions of the scoop havingcentrally thereof oppositely exposed coupling shoulders on opposedsurfaces of the scoop, the last named shoulders being faced oppositelyto said first named shoulders on shoulders to receive said last namedprojections.

6. A scoop for separable fastener stringers, said scoop comprisingmounting and coupling I ends, the coupling end having on upper andlowersurfaces oppositely converging outer and inner walls throughout thewidth thereof defining substantially V-shaped transverse projections atthe outer portion of said coupling end and outer walls of transverserecesses, said surfaces having inwardly diverging walls defining theinner wallsof said transverse recesses, said recesses and pro.- jectionsproviding interlocking engagement between coupled stringers preventinlateral separation of the. stringers, said outer converging walls of theprojections having oppositely faced coupling shoulders centrally of saidscoop, the inner walls of said recesses.having oppositely faced couplingshoulders, the coupling shoulders of one surface of the scoop beingfaced opposite to the same coupling shoulders on the other surface ofsaid scoop, and all of the converging walls of said scoop convergingfrom the central portion of the scoop to sidesurfaces thereof.

7. A scoop for separable fastener stringers, said scoop comprisingmounting and coupling ends, the coupling end having on upper and lowersurfaces oppositely converging outer and inner walls throughout thewidth thereof defining substan- .tially V-shaped transverse projectionsat the outer portion of said coupling end and outer walls of transverserecesses, said surfaces having inwardly diverging walls defining theinner walls of said transverse recesses, said recesses and projectionsproviding interlocking engagement between coupled stringers preventinglateral separation of the stringers, said outer converging walls of theprojections having oppositely faced coupling shoulders centrally of saidscoop, the inner walls of said recesses having oppositely faced couplingshoulders, the coupling shoulders of one surface of the scoop beingfaced opposite to the same coupling shoulders on the other surface ofsaid scoop, all of the converging walls of said scoop converging fromthe central portion of the scoop to side surfaces thereof, and said sidesurfaces of the scoop having notches in allnement with the transverserecesses on opposed surfaces of the scoop.

8. A-scoop for separable fastener stringers, said the coupling endhaving on upper and lower surfaces oppositely converging outer and innerwalls of and defining substantially V-shaped transversev projections atthe outer portion of said coupling end and outer walls of transverserecesses, said surfaces having inwardlydiverging walls defining theinner walls of said transverse recesses, said recesses and projectionsproviding interlocking engagement between coupled stringers preventinglateral separation of the stringers, one side of the upper surface oftheouter wall of said scoop being extended to form centrally of thescoop a coupling shoulder, the opposite side of the lower surface ofsaid wall of the scoop being extended to form centrally of the scoop acoupling-shoulder, the inner wallof the recesses of said scoop-beingextended on said surfaces at sides opposed to said first namedextensions to form centrally of the scoop coupling shoulders faced in adirection opposite to said first named shoulders, and said shouldersproviding universal coupling of scoops of opposed stringers retainingcoupled stringers against transverse separation.

9. A scoop for separable fastener stringers, said scoop comprisingmounting and coupling ends, the coupling end having on upper and lowersurfaces oppositely converging outer and inner walls throughout thewidth thereof defining substantially V-shaped transverse projections atthe outer portion of said coupling end and outer walls of transverserecesses, said surfaces having inwardly diverging walls defining theinner walls of said transverse recesses, said recesses and projectionsproviding interlocking engagement between coupled stringers preventinglat-era] separation of the stringers, one side of the upper surface ofthe outer wall of said scoop being extended to form centrally of thescoop a coupling shoulder, the opposite side of the lower surface ofsaid wall of the scoop being extended to form centrally of the scoop acoupling shoulder, the inner wall of the recesses of said scoop beingextended on said surfaces at sides opposed to said first namedextensions to form centrally of the scoop coupling shoulders faced in adirection opposite to said first named shoulders, said shouldersproviding universal coupling of scoops of opposed stringers retainingcoupled stringers against transverse separation, and the side portionsof the coupling x the central portion thereof to side surfaces of the rscoop comprising mounting and coupling ends,

scoop.

10. A scoop for separable fastener stringers, said scoop having amounting end portion and a coupling end portion, the coupling endportion comprising a head and a recessed portion each defined at leastin part by upper and lower walls,

- said recessed portion having oppositely faced shoulders, said headhaving on upper and lower walls thereof oppositely faced shoulders, andsaid head having widthwise of the scoop intersecting upper Walls andintersecting lower walls.

11. A coreless scoop for separable fastener stringers, said scoop havingmounting and coustringers to prevent transverse separation of thestringers, and said first named ridges and channels retaining saidcoupled stringers against lateral separation.

12. A scoop for separable fastener stringers, said scoop having amounting end portion and a coupling end portion, the coupling endportion comprising a head and a recessed portion each defined at leastin part by upper and lower walls, said recessed portion havingoppositely faced shoulders, said head having on upper and lower wallsthereof oppositely faced shoulders, said head shoulders being spaced,lengthwise of the scoop, both from the free end of the head and from thedeepest part of the recessed portion.

LOUIS H. MORIN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,817,838 Poux Aug. 4, 19312,355,996 Morin Aug. 15, 1944 2,361,782 Low Oct. 31, 1944

